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Show 884 ON SCORPIONS ETC. FROM TROPICAL WEST AFRICA. [Nov. 14, stopping short on a level with the 1st leg; frontal stripe involving lateral angles of carapace and sides of abdomen occupied by a continuous black stripe, extending to the spinners ; spinners surrounded by ring of black below ... sex-maculatus Sim. bl. Carapace yellow, not margined with black, spotted with black; mandibles not black externally; black abdominal spots small pantherinus Poc. EXPLANATION OF THE PLATES. PLATE LV. 1. Aranceihra butleri (p. 860). x 4. 2. Mthrodes mammosa (p. 861). x 3 (nearly). 3. Araneus tyloscapus (p. 851). X 2. 3«. ,, ,, vulva from below. 3 6. ,, „ vulva from behind. 4. Cyrtophora maryaritata (p. 854). X 2. **• » „ vulva. 5. Carostris aryostictus (p. 855). X 2. 5 a- „ „ vulva. 5 b- J, „ front leg from below. 6. Phalcea ferox (p. 863), vulva. 6«. „ „ diagram of arrangement of eyes. 7 Ctenus (Leptoctenus) ayilior (p. 873), tibial spurs of palp (spurs shaded). PLATE LVI. .Fig. 8. Araneus hmmatocnemis (p. 850). X \\. 8 a. „ „ Var. &b. „ „ Var. °c- >. „ vulva, lateral view. 9. Araneus rhinurus (p. 852). X 2. 9 *• .• ,, vulva, lateral view. 10. Gasteracantha batesi (p. 858). x 2. 11. Phoneyusa bidentata (p. 843), palpal organ. 12 & 12 a. Sparassus benitensis (p. 875), two forms of vulva 13. Sparassus rufilatus (p. 878), palpal organ from below. 13«. „ ,, tibial spur of palp. 14. Phrynarachne marmorata (p. 880). X 3. PLATE LVII. Fig. 15. Ccerostris turriyer (p. 857), side view, x 1.4. 15 fl- ,7 „ vulva. 16. ,, albescens (p. 856), vulva. 17. Peucetia longipes (p. 861), vulva. 18. Thalassius guineensis (p. 864), vulva. 19. „ formosus (p.i 865), lateral view of carapace. AJ. „ auratus (p. 866), vulva. 21. „ leonensis (p. 867), vulva. 22- .. reyalis (p. 86S), vulva. 23. ,, insiynis (p. 868), vulva. -3fl- >> „ lateral view of carapace. 24. Dolomedes transfuya (p. 869), tibial spur of d • 25. Ctenus scopulatus (p. 871), vulva. 26. „ rivulatus (p. 872), tibial spur of d • -6 «• » „ central portion of palpal organ. |